US6329590B1ExpiredUtility

Integrated method for containment of radiated electromagnetic radiation

44
Assignee: NCR CORPPriority: Dec 2, 1999Filed: Dec 2, 1999Granted: Dec 11, 2001
Est. expiryDec 2, 2019(expired)· nominal 20-yr term from priority
H05K 9/0015
44
PatentIndex Score
10
Cited by
2
References
18
Claims

Abstract

An apparatus and method for electromagnetic shielding is disclosed. The apparatus comprises an enclosure, a plate, and a material disposed between the enclosure and the plate. The enclosure has an aperture that is substantially transmissive to electromagnetic radiation. The plate is coupled to the enclosure proximate to the aperture, and covers the aperture completely with an area of overlap on all sides of the aperture. The material is disposed between the plate and the enclosure in the area of overlap between the plate and the enclosure and provides intimate contact between the enclosure and the plate to substantially prevent electromagnetic radiation from passing through the aperture when the plate is coupled to the enclosure.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
       1. An electromagnetic shielding enclosure, comprising: 
       an enclosure having an aperture that is substantially transmissive to electromagnetic radiation, the aperture having a first width and a first height;  
       a plate coupled to the enclosure proximate to the aperture, the plate comprising a substantially electromagnetic containing material, the plate having a second width and a second height, the second width being larger than the first width and the second height being larger than the second height; and  
       a material, disposable between the plate and the enclosure in an area of overlap between the plate and the enclosure, the material providing intimate contact between the enclosure and the plate to substantially prevent electromagnetic radiation from passing through the aperture when the plate is coupled to the enclosure.  
     
     
       2. The enclosure of claim  1 , wherein the material is an additional thickness of metal. 
     
     
       3. The enclosure of claim  1 , wherein the material is a perforated material. 
     
     
       4. The enclosure of claim  1 , wherein the material is attached to the plate. 
     
     
       5. The enclosure of claim  1 , wherein the material is attached to the enclosure. 
     
     
       6. The enclosure of claim  1 , wherein the enclosure provides shielding to a component inside of the enclosure. 
     
     
       7. The enclosure of claim  1 , wherein the enclosure contains electromagnetic radiation emanated from a component inside of the enclosure. 
     
     
       8. The enclosure of claim  1 , wherein the plate comprises at least a first subplate and a second subplate; and 
       a material disposable between the first subplate and the second subplate.  
     
     
       9. A method for providing electromagnetic shielding by an enclosure having an aperture having a first height and a first width, the aperture being substantially transmissive to electromagnetic radiation, comprising the steps of: 
       coupling a plate to the enclosure proximate to the aperture, wherein the plate has a second height and a second width, the plate comprising a substantially electromagnetic containing material, the second width being larger than the first width and the second height being larger than the first height; and  
       disposing a material between the plate and the enclosure in an area of overlap between the plate and the enclosure, the material providing intimate contact between the enclosure and the plate to substantially prevent electromagnetic radiation from passing through the aperture when the plate is coupled to the enclosure.  
     
     
       10. The method of claim  9 , wherein the material is an additional thickness of metal. 
     
     
       11. The method of claim  9 , wherein the material is a perforated material. 
     
     
       12. The method of claim  9 , wherein the material is created by disturbing the surface of the base material. 
     
     
       13. The method of claim  9 , wherein the material is attached to the plate. 
     
     
       14. The method of claim  9 , wherein the material is attached to the enclosure. 
     
     
       15. An apparatus for containing electromagnetic radiation, comprising: 
       an enclosure having an aperture that is substantially transmissive to electromagnetic radiation;  
       a first edge plate having a first mating surface, the first edge plate comprising material that substantially contains electromagnetic radiation;  
       a second edge plate having a second mating surface, the first and second edge plates being mounted to the enclosure to cover the aperture; and  
       a material, disposable between the first mating surface of the first edge plate and the second mating surface of the second edge plate, the material providing intimate contact between the first edge plate and the second edge plate to substantially prevent electromagnetic radiation from passing through the aperture when the first edge plate and the second edge plate are mounted to the enclosure.  
     
     
       16. The apparatus of claim  15 , wherein the first mating surface and the second mating surface are overlapping. 
     
     
       17. The apparatus of claim  15 , further comprising a third edge plate and a fourth edge plate, wherein the third edge plate and fourth edge plate have mating surfaces that are designed to mate directly to the enclosure. 
     
     
       18. The apparatus of claim  15 , wherein the first mating surface and the second mating surface are interlocking.

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References (0)

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